5-Sulphosalicylic acid dihydrate ≥99%, AnalaR NORMAPUR® analytical reagent

Supplier: VWR Chemicals
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Synonyms: 2-Hydroxy-5-sulphobenzoic acid dihydrate

20678.187EA 4983 INR
20678.187 20678.267 20678.291
5-Sulphosalicylic acid dihydrate ≥99%, AnalaR NORMAPUR® analytical reagent
5-Sulphosalicylic acid dihydrate
Formula: HO₃SC₆H₃-2-(OH)CO₂H·2H₂O
MW: 254,22 g/mol
Melting Pt: 224 °C
Density: 1,695 g/cm³ (20 °C)
Flash Pt: 150 °C
Storage Temperature: Ambient
MDL Number: MFCD00149540
CAS Number: 5965-83-3
EINECS: 202-555-6
UN: 2585
ADR: 8,III
Merck Index: 13,09054
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Specification Test Results

Assay Min. 99 %
Free salicylic acid Max. 0.04 %
Heavy metals (as Pb) Max. 10 ppm
Ignition residue (SO4) Max. 0.1 %
Insolubility in NH3 4 N Max. 0.03 %
Insolubility in ethanol 96 % vol Max. 0.1 %
Insolubility in water Max. 50 ppm
Cl (Chloride) Max. 10 ppm
Fe (Iron) Max. 25 ppm

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